Grok Build is xAI’s evolving coding platform that is expanding beyond a simple CLI agent into a full browser-based IDE experience. One of its standout features is Parallel Agents, which allows users to send a single prompt to multiple AI agents at once for side-by-side comparison. Users can run up to eight agents simultaneously across models like Grok Code 1 Fast and Grok 4 Fast. The interface includes a dedicated coding session view with visible outputs and context usage tracking. An experimental Arena Mode appears to enable agents to collaborate or compete, potentially ranking the best responses automatically. The UI overhaul introduces browser-style tabs such as Edits, Files, Plans, Search, and Web Page, along with live previews and codebase navigation. With GitHub integration, dictation support, and collaboration tools in development, Grok Build is positioning itself as a multi-agent AI-powered development environment.